Technical Specifications
Material Quantity: 300kg per batch
Cold Trap Low Temperature: ≤-50℃
Large water trapping capacity: 360 kg/batch
Ultimate vacuum degree: ≤5 Pa
Total Power: 112 kW
Equipment installation area and height: 50m² x 2.6m
Weight: 9,500 kg
Key Features of This Machine
Pre-freezing and drying are completed in situ, with the freeze-drying process automated for easy operation.
2. Circulating medium within the laminates, temperature adjustable, with a temperature difference ≤1°C, for more uniform refrigeration and heating effects.
Touchscreen operation, PLC control system, real-time monitoring of equipment operation.
4. Compatible with computer connection, allows remote control, and stores freeze-drying curves.
5. Integrated design for easy transportation and installation, space-saving.
6. Features include CIP in-process cleaning, SIP in-process sterilization, hydraulic stopper system, and more.
Equipment Application Fields
Pharmaceutical Industry: The freeze-drying technique can be used for the dehydration and preservation of various Chinese and Western medicines, including dry powders, pastes, vaccines, enzymes, antibiotics, hormones, etc.
2. Food Industry: Vacuum freeze-drying technology is primarily used in the food industry for drying coffee, leafy vegetables, juices, strawberries, whole shrimp, meats, specialty vegetables, etc. It preserves the color, aroma, flavor, shape, and nutritional content of the food, making it easy for long-term storage and transportation. It is highly suitable for the production of convenient and nutritious food.
3 Nutritional Health: The vacuum freeze-drying technique can also be used for drying royal jelly, pearl powder, ginseng, fish meal, ant powder, snake powder, and more. It can preserve their nutritional and active components for a long time.
Ensure the naturalness of nutritional supplements.
4. Biomedical Research: Utilizing freeze-drying technology, bacteria, arteries, bones, skin, corneas, and neural tissues, as well as various organs, can be preserved for long periods. When in use, water can be supplied to regenerate them, ensuring preservation.
Its biochemical and physical characteristics.
5. Other applications such as in the production of aerospace thermal insulation ceramics, wood and silk artifacts in archaeology, preservation of products, specimen creation, and preparation of special materials yield unique effects.
Principle of Freeze-Drying
Drying is one method of preserving substances from spoilage and deterioration. There are many ways to dry, such as sun-drying, boiling dry, air-drying, spray drying, and vacuum drying, etc. However, these drying methods are all based onProcess at temperatures of 0°C or higher. The dried product is typically reduced in volume, becomes harder in texture, and some substances may oxidize. Most volatile components are lost, and heat-sensitive substances like proteins may denature. Microorganisms lose biological activity, and the dried material is less soluble in water. Therefore, the properties of the dried product differ significantly from the original, as the freeze-drying process differs from the above drying methods. The product is dried at temperatures below 0°C, in a frozen state, until the later stage when the product is gradually raised to temperatures above 0°C to further reduce residual moisture content, usually not exceeding 50°C. Freeze-drying involves pre-freezing the moisture-rich material to a solid state and then, under vacuum conditions, allowing water vapor to sublime directly, leaving the substance in the frozen ice matrix. As a result, the dried product is porous with no change in volume. To increase the sublimation rate and shorten the drying time, the product must be slightly heated. The entire drying process is carried out at lower temperatures.
Advantages of Freeze-Drying
1. Freeze-drying is conducted at low temperatures, making it particularly suitable for many thermosensitive materials, such as proteins and microorganisms, which do not denature or lose their biological activity. Therefore, it is widely used in pharmaceutical applications.
2. During low-temperature dry roasting, there is minimal loss of volatile components in the material, making it suitable for drying certain chemical products, pharmaceuticals, and food.
3. During the freeze-drying process, microbial growth and enzyme activity are halted, thus preserving the original properties.
4. Due to drying under a frozen state, the volume remains nearly unchanged, preserving the original structure and preventing any concentration.
5. The dried substance is loose and porous, resembling a sponge. Upon addition of water, it dissolves quickly and completely, almost immediately restoring its original properties.
6. Due to the drying process being carried out under vacuum with minimal oxygen, some easily oxidizable substances are protected.
7. Drying can remove over 95% of moisture, allowing the product to be preserved for a long time after drying without deterioration.
Therefore, freeze-drying is currently widely used in the pharmaceutical industry, food industry, scientific research, and other departments.
